:proc:
:singleton_method: :instance_method: :[*arg]: [NilClass] :call: [NilClass] :===: [NilClass] :arity: [Fixnum] :binding: [Binding] :curry: [Proc] :hash: [Integer] :to_s: [String] :inspect: [String] :lambda?: [TrueClass,FalseClass] :parameters: [Array] :source_location: [Array,NilClass] :to_proc: [Proc]